ASP.NET Core 3.1 MVC returns JSON formatted as string [duplicate]

Question

I see that my APIController is returning a JSON but formatted as text, which means I have to parse it in client in order to manipulated it, and I want to avoid that.

I tried several things that are mentioned in this site and none worked.

What can I do?

Here is the controller method:

public async Task<IActionResult> Get()
{
    var ordersList =  await _ordenExternaService.GetOrdenExternaCasos();

    var json = JsonConvert.SerializeObject(casos);

    return Ok(json);
}

Here is the Postman result:

"[{\"Id\":3,\"IdOrdenExterna\":9041,\"NroCaso\":null,\"Motivo\":\"Nombre y Apellido de envio Completo no coincide con el del titular de la Tarjeta\",\"FechaEnvio\":null,\"NroOrdenPublica\":\"187901-205292-1665\"}]"

it's because you are serilizing it twice....

Selvin
– Selvin

2021-08-25 12:04:07 +00:00
Commented Aug 25, 2021 at 12:04 — Selvin
– Selvin, Commented Aug 25, 2021 at 12:04

Tanveer Badar · Accepted Answer · 2021-08-25 12:02:21Z

3

That's because you are double encoding the return value. Your action should really be

public async Task<IActionResult> Get()
{
   var ordersList = await _ordenExternaService.GetOrdenExternaCasos();

   return Ok(ordersList);
}

answered Aug 25, 2021 at 12:02

Tanveer Badar

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3 Comments

Francisco G Over a year ago

Thanks! it worked.

Tanveer Badar Over a year ago

In that case, please accept the answer too.

Francisco G Over a year ago

I will, I have to wait 5 minutes to do that.

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